it depends what you would need and what electrical work you would be doing.
ie. if doing massive 630mm mains you may want some parrot beak cutters.
personally i have a pair of "Marvel" pliers. they are the orange handled ones and are just oh so sharp. and can cleanly cut up to 4mm flat tps with ease.
sidchrome sideys are also awesome. get a second small pair for the cable ties aswell if you can
cresent conduit cutters that cut up to 42mm conduit are also good. only cost about $20 and are awesome.
velo, or stanley screwdrivers. make sure to get the insulated ones. no point not having insulated, even though you arent ment to work live.
you had better have a plaster saw aswell, they are pretty much all the same, get whichever you want. if you dont have this, you are not an electrician =P
and a 2nd average pair of pliers is very good for doing catenary wires. no point busting up your good ones.
a small set with shifters and spanners and so forth it good aswell. bahco have a set of 3 ratchet spanners with 4 sizes per spanner, about $80 but worth it.
having a shifter or 2 is also helpful, you will use them a bit.
make sure to get a volt stick, personally i have a fluke one, has never let me down.
along with a good multimeter, get a clamp one if you can, much more useful then the regular ones.
kyoritsu do sell a fairly good meggar,clamp and multimeter kit, and are a pretty good brand aswell.
i could go on and on, naming my whole toolkit as an app sparky.
but pretty much it depends on what you do. commercial, industrial, domestic etc it does vary a bit.
and depending if you work for a small/big company or for yourself will depend if work supplies alot of tools, like power tools.
check out some places like "sydney tools" and other toolshops, you can normally find some awesome deals on these sites.